c# - The remote procedure call failed -

this first post, please easy on me :)

i doing a tutorial facebook sdk, , trying login facebook service windows phone xaml application. works fine when follow steps of tutorial, , hit login button log in, when trying automate this, error.

the code uses webauthenticationbroker, calling webauthenticationbroker.authenticateandcontinue(loginurl);

when try put code inside loaded event

private void page_loaded(object sender, routedeventargs e) {     if (this.fbhelper.accesstoken == null)     {          webauthenticationbroker.authenticateandcontinue(loginurl); //throws error     }     else     {         getuserinfo();     } } 

i following error:

the remote procedure call failed. (exception hresult: 0x800706be)

i think problem page not ready yet perform logic, don't know should put code?

it seems broker can called once window activated. i've tried should work when done this:

public mainpage() {     this.initializecomponent();     window.current.activated += current_activated; }  private void current_activated(object sender, windows.ui.core.windowactivatedeventargs e) {     window.current.activated -= current_activated;     debug.writeline("activated");     webauthenticationbroker.authenticateandcontinue(new uri("https://google.com")); } 

of course needs improvements, should work. remember activeted event may called number of reasons, example after dialog shown.